/**
 * Copyright 1999-2015 dangdang.com.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * </p>
 */

package com.dangdang.ddframe.rdb.sharding.executor;

import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;

import java.sql.SQLException;

/**
 * 执行器执行时异常处理类.
 * 
 * @author zhangliang
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
@Slf4j
public final class ExecutorExceptionHandler {
    
    private static ThreadLocal<Boolean> isExceptionThrown = new ThreadLocal<>();
    
    /**
     * 设置是否将SQL异常抛出.
     * 
     * @param isExceptionThrown 是否将SQL异常抛出
     */
    public static void setExceptionThrown(final boolean isExceptionThrown) {
        ExecutorExceptionHandler.isExceptionThrown.set(isExceptionThrown);
    }
    
    static void handleException(final SQLException ex) throws SQLException {
        if (null == isExceptionThrown.get() || isExceptionThrown.get()) {
            throw ex;
        }
        log.error("exception occur: ", ex);
    }
}
